XDP carries everything you need to maintain or upgrade the Charging & Starting systems and components in your 2001-2004 GM 6.6L Duramax LB7. With a huge selection of high-quality starters, batteries, and alternators to choose from, XDP has the parts you need to handle the most draining aftermarket electric components.
Everyday add-on electrical accessories like LED light bars, plows, winches, and audio equipment can tax your charging system beyond its capability. The XDP HD Series High Output Alternators far surpass the factory output and reliability. The increased amperage of a high output alternator will reduce the burden on the charging system while improving dependability and performance. An XDP Gear Reduction Starter is a popular upgrade for your electrical system. With a smaller, more efficient motor that draws less amperage, these starters provide greater torque than your stock starter. This extra torque helps turn over even a high compression diesel, faster and easier.
Chances are you have already replaced your battery a few times as the average life expectancy of a battery is 4-6 years. Be sure to change the battery or batteries in your truck so they don’t leave you stranded. XDP offer a complete line of batteries that are a great for stock trucks or vehicles that require higher output to handle additional on-board accessories. These batteries offer longer service life and greatly increase reliability over conventional replacement batteries.
The 2001-2004 GM 6.6L Duramax LB7 2500/3500 models are commonly equipped with a Group Size 78 Battery.